4 files changed, 7 insertions, 4 deletions
diff --git a/src/gui/image/qpixmap_s60.cpp b/src/gui/image/qpixmap_s60.cpp
index 554c0f3..9ae8d72 100644
--- a/src/gui/image/qpixmap_s60.cpp
+++ b/src/gui/image/qpixmap_s60.cpp
@@ -716,6 +716,8 @@ void QS60PixmapData::beginDataAccess()
 
 void QS60PixmapData::endDataAccess(bool readOnly) const
 {
+    Q_UNUSED(readOnly);
+
     if(!cfbsBitmap)
         return;
 
diff --git a/src/gui/painting/qpaintengine_s60.cpp b/src/gui/painting/qpaintengine_s60.cpp
index e17dba1..6f4f398 100644
--- a/src/gui/painting/qpaintengine_s60.cpp
+++ b/src/gui/painting/qpaintengine_s60.cpp
@@ -47,7 +47,7 @@ QT_BEGIN_NAMESPACE
 class QS60PaintEnginePrivate : public QRasterPaintEnginePrivate
 {
 public:
-    QS60PaintEnginePrivate(QS60PaintEngine *engine) { }
+    QS60PaintEnginePrivate(QS60PaintEngine *engine) { Q_UNUSED(engine); }
 };
 
 QS60PaintEngine::QS60PaintEngine(QPaintDevice *device, QS60PixmapData *data)
diff --git a/src/gui/text/qfontdatabase.cpp b/src/gui/text/qfontdatabase.cpp
index e8f6d39..738e36a 100644
--- a/src/gui/text/qfontdatabase.cpp
+++ b/src/gui/text/qfontdatabase.cpp
@@ -1354,6 +1354,7 @@ static void match(int script, const QFontDef &request,
 #ifdef Q_WS_X11
     load(family_name, script, forceXLFD);
 #else
+    Q_UNUSED(forceXLFD);
     load(family_name, script);
 #endif
 
diff --git a/src/gui/widgets/qmainwindow.cpp b/src/gui/widgets/qmainwindow.cpp
index 0947e1b..501e62f 100644
--- a/src/gui/widgets/qmainwindow.cpp
+++ b/src/gui/widgets/qmainwindow.cpp
@@ -119,7 +119,7 @@ void QMainWindowPrivate::init()
     q->setAttribute(Qt::WA_Hover);
 #ifdef QT_SOFTKEYS_ENABLED
     menuBarAction = QSoftKeyManager::createAction(QSoftKeyManager::MenuSoftKey, q);
-    menuBarAction->setObjectName("_q_menuSoftKeyAction");
+    menuBarAction->setObjectName(QLatin1String("_q_menuSoftKeyAction"));
 #endif
 }
 
@@ -933,7 +933,7 @@ static bool checkDockWidgetArea(Qt::DockWidgetArea area, const char *where)
 }
 
 #ifndef QT_NO_TABBAR
-/*! 
+/*!
     \property QMainWindow::documentMode
     \brief whether the tab bar for tabbed dockwidgets is set to document mode.
     \since 4.5
@@ -954,7 +954,7 @@ void QMainWindow::setDocumentMode(bool enabled)
 #endif // QT_NO_TABBAR
 
 #ifndef QT_NO_TABWIDGET
-/*! 
+/*!
     \property QMainWindow::tabShape
     \brief the tab shape used for tabbed dock widgets.
     \since 4.5